The boy attended Palmetto Middle School in Williamston, where Sanders was PTO president.

Harris said, "We do have some evidence, and some of it's physical, some of it's testimonial."

Anderson District 1 said that Sanders was not an employee of the district, but she was on the books as a substitute teacher during the last school year.

News 4 has learned that the alleged sex acts took place in Sanders’ home and in a portable classroom at Palmetto Middle School.

Harris said, "There are still some other allegations that we are investigating, and I'm obviously reluctant at this time to speak on those until we can find the outcome.

“A person of this stature, in that position, they are a figurehead. They are a mentor for a lot of young adults, and unfortunately sometimes they're taken advantage of, and sometimes these people in these positions take advantage of that situation for their own personal gain," Harris said.

Late Monday, the Anderson County Sheriff's Office also charged Sanders with criminal sexual conduct with a minor. Investigators said some of the incidents between Sanders and the student happened at her former home in the county.

Ryan Beasley, Sanders' attorney, said his client is the mother of three, has no criminal history, and is cooperating with police.